Which of the following statements about equity valuation is correct? A. Constant-growth rate dividend discount model (DDM) imples that a stock's value increases if the expected growth rate of dividends decreases. B. The security is under valued if its expected holding period return (HPR) is above the required return. C. Constant-growth rate dividend discount model (DDM) imples that the stock price is expected to grow more slowly than dividends. D. The present value of growth opportunities (PVGO) is always positive. E. Constant-growth rate dividend discount model (DDM) imples that a stock's value increases if the required return increases